|  | # Ryu OpenFlow Controller | 
|  | # ----------------------- | 
|  |  | 
|  | # Save trace setting | 
|  | XTRACE=$(set +o | grep xtrace) | 
|  | set +o xtrace | 
|  |  | 
|  |  | 
|  | RYU_DIR=$DEST/ryu | 
|  | # Ryu API Host | 
|  | RYU_API_HOST=${RYU_API_HOST:-127.0.0.1} | 
|  | # Ryu API Port | 
|  | RYU_API_PORT=${RYU_API_PORT:-8080} | 
|  | # Ryu OFP Host | 
|  | RYU_OFP_HOST=${RYU_OFP_HOST:-127.0.0.1} | 
|  | # Ryu OFP Port | 
|  | RYU_OFP_PORT=${RYU_OFP_PORT:-6633} | 
|  | # Ryu Applications | 
|  | RYU_APPS=${RYU_APPS:-ryu.app.simple_isolation,ryu.app.rest} | 
|  |  | 
|  | function configure_ryu() { | 
|  | setup_develop $RYU_DIR | 
|  | } | 
|  |  | 
|  | function init_ryu() { | 
|  | RYU_CONF_DIR=/etc/ryu | 
|  | if [[ ! -d $RYU_CONF_DIR ]]; then | 
|  | sudo mkdir -p $RYU_CONF_DIR | 
|  | fi | 
|  | sudo chown $STACK_USER $RYU_CONF_DIR | 
|  | RYU_CONF=$RYU_CONF_DIR/ryu.conf | 
|  | sudo rm -rf $RYU_CONF | 
|  |  | 
|  | cat <<EOF > $RYU_CONF | 
|  | --app_lists=$RYU_APPS | 
|  | --wsapi_host=$RYU_API_HOST | 
|  | --wsapi_port=$RYU_API_PORT | 
|  | --ofp_listen_host=$RYU_OFP_HOST | 
|  | --ofp_tcp_listen_port=$RYU_OFP_PORT | 
|  | EOF | 
|  | } | 
|  |  | 
|  | function install_ryu() { | 
|  | git_clone $RYU_REPO $RYU_DIR $RYU_BRANCH | 
|  | } | 
|  |  | 
|  | function is_ryu_required() { | 
|  | if is_service_enabled ryu || (is_service_enabled quantum && [[ "$Q_PLUGIN" = "ryu" ]]); then | 
|  | return 0 | 
|  | fi | 
|  | return 1 | 
|  | } | 
|  |  | 
|  | function start_ryu() { | 
|  | screen_it ryu "cd $RYU_DIR && $RYU_DIR/bin/ryu-manager --flagfile $RYU_CONF" | 
|  | } | 
|  |  | 
|  | function stop_ryu() { | 
|  | : | 
|  | } | 
|  |  | 
|  | # Restore xtrace | 
|  | $XTRACE |